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Word of the Day Tuesday, June 9, 2026

frontier

/frɒntɪər/ noun · British & US
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What does frontier mean?

noun

A line or region at the edge of an area of exploration, settlement, or activity; a boundary beyond which a particular activity or condition begins. A region of land that is at the edge of a country or an area of settlement.

Example

"The pioneers pushed westward across the frontier, seeking new opportunities and a better life."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for frontier

Antonyms of frontier

Rhymes with frontier

Etymologically related